Smoke-preventing apparatus.



Patented Apr. 24, |900.

w.vH. W'EIGHTMAN. SMUKE PREVENTING APPARATUS.

(Application filed Aug. 11, 1899.)

(No Model.)

Mmmm Wmawmw wlTN 255m- NITED STATES PATENT OFFICE.

WILLIAM II. WEIGHTMANOF NEW YORK, N. Y.

SMOKE-PREVEN'TING APPARATUS.

SPECIFICATION forming part 0f Letters Patent No. 648,320, dated April 24, 1900.

Application filed August 11, 1899. Serial No. 726,950. (No model.)

tions, or chimney of a stove, furnace, or simi-' lar apparatus, whereby a complete, economical, and satisfactory combustion of the fuel and its gases is provided for.

Certain improvements consist in the special construction, application, and combination of a chamber adapted to receive, retain for heating, and distribute, by pressure or otherwise, atmosphericv air or any like combustion-assisting medium into and through the lines, draft-compartments, passages, or chambers of a stove or furnace, whereby the containedV medium is received and heated and thence scattered among and caused to mingle or unite with any nnconsumed gases arising from the heating, roasting, and consumption of the fuel.

' Other improvements consist in the special construction, arrangement, and combination of the several parts, portions, or details comprising the apparatus, as hereinafter shown, described, and claimed. l

In the accompanying drawings, Figures l, 2, and 3 represent cross and longitudinal sectional views of a flue or connection provided with an apparatus embodying my improvements. Figs. 4, 5, and 6 represent views of the same, showing the air or medium receiving chamber in several positions for different purposes and uses.

Similar letters of reference designate like parts, portions, or details in all the figures.

Letter A designates a furnace flue or connection.

B designates a special cylindrical-shaped side pocket projecting from and connected with said iiue or connection A.

G designates an air or medium receiving chamber composed of the damper portion D and a cylindrical portion E.

F designates outlet holes, slots, or perfora4 Vtions located in the walls of the cylindrical portion E.

G designates inlet holes or perforations located in the disk side or bottom of cylindrical portion E of chamber C. These holes or perforations,wliether for inlet or outlet purposes, are more or less opened or closed by the revolution of chamber G by means of the handle l, attached thereto. y

J designates a side, diaphragm, valve, or bottom for pocket B, the same being provided with holes, perforations, 0r slots,'whereby the inlets G of compartment E are covered or uncovered, opened or closed, as desired, by the revolution of chamber C.

K designates a continuation of side pocket B to provide for a pressure delivery when desired.

As illustrated in Figs. 2, 4, 5, and 6, an opening in the diaphragm J, the outline of which opening is indicated by the letters J', is made use-of to effect the control of the opening or closing of the holes or perforations G to admit air or medium to chamber C in quantities as desired.

In Figs. l and 3 an ordinary method of applyin g` the device is shown wherein, therebeing no diaphragm J, the control of the admission of air or combustion assisting medium to tlue, connection, furnace, or stove is wholly controlled by the covering or uncovering of the holes or perforations F through the revolution of damper-chamber C, including its cylindrical portion E. In Fig. 1, for instance, a single uncovered and uncontrollable hole or perforation is shown at G for air admission, the chamber C being full at all ti1nes,the outlet or discharge being controlled by the covering of all or a portion of the holes or perforations F by the cylindrical pocketwalls B. The hole or perforation G may of course be made of any size, diameter, or shape best suited to necessity, or, as shown in Fig. 3, there may be a plurality of holes G. The actual admission of air or `combustion-assisting medium -is uncontrolled when the apparatus is con structed as shown in Figs. l and 3, while its discharge from chamber Cinto flue or connection is accomplished and controlled by the revolution of chamber C on its axis through handle I.

`The right-angular meeting of the twocy# lindrical shapes of flue A and side pocketv B` develops' an opportunity for the exposure or openingandthe covering or closure of the exit holes or perforations F, according to the position of chamber C, for opening or closing flue A. When'the Iiue orvconnectionA is fullyfopen and `the damper portion D is in .p line therewith, all of the holes F are uncov- 1o ered, While as the damper is swung towarda closing of the flue or connection more orless ofV the holes vbec .c me covered'by the circular wallsof pocket Bj, l

` As .illustrated in Figs. 2, 4,5, and 6the diaphragm side of chamberfEis provided with `holes or perforations,the same being located so as to be covered or uncovered byA the opening J in pocket-diaphragm of'B,'ac cording as the iiue is opened or clos'ed,'orbe' tween the two. 4 The diaphragm portion J may readily be located at av greater or lessf distance from the iiue A by the elongation ol"vr the cylindrical pocket B and an equal elongation of cylindrical portion E of chamber C. W'hile the use of the damperv portion D of chamber C ispreferable and advisable, it may, be dispensed with and cylindrical portion E alone Vmade use of for the admission of air or mediuinto the-iiue or connections. It can then be held in position and revolved by a rod connecting with handle I.

Vhen Vthe damper portion D is used, a vent Vor passage Dis provided, as shown, for general ventilation of the` flue and connections. f What I claim as new, and desire to secure by Letters Patent, is-v l 1. In combination with a furnace Hue" or stan tiall y chimney, a connecting cylindrical pocket, an inclosed air-receiving chamber comprising a hollow .damper portion suitable to said {'lue and a hollow cylindrical portion suitable to said pocket, outlet holes or perforations in the periphery of said cylindrical portion, and lmeans for revolving said air-receiving chamber,substantially as andfor the purposes set forth." Y l i p '2. In combination with la furnace iiue or chimney, a connectin'gcylindrical pocket, an inclosed air-receiving chambercomprising a hollowl damper portion suitable to said iue and a hollow cylindrical portion suitable to said pocket, outlet holes or perforations in the `periphery of said cylindrical portion,

:means for revolving said air-{receiving chamber, and a'ventilating-.passage vthrough said damper portion, `substantially as and for the purposes set`forth.; .v

Incombination with a furnace iiueor chimney, a connecting cylindrical pocket p ro- Vvided with an outer,valve-diaphragm, aninclosed air-receiving chamber comprising a lhollow'damper portion suitable to said flue and a hollow cylindrical portion suitable lto saidl pocket, outlet holes or perforations in the peripheral Walls' of said cylindrical portion, av valvular diaphragm at the outer' end otsaid cylindrical portion in operative contact with that of the Hue-pocket, and means for revolving said air-receiving chamber, subas and for the purposes set forth. `WILLIAMII- WEIGI-IIMAN. Witnesses:

SPENCER ALDRICH, W. H. EDGERLEY. 

